Machine for riveting horse-collars.



PATENTED AUG. 7, 1906.

A. W. BERNDT.

MACHINE FOR RIVETING HORSE UOLLARS.

APPLICATION FILED MAR.20. 1905.

2 SHEETS-SHEET 1.

INVENTOR' rns nouns rrrsRs co., wAsumarolv, n. c.

No. 827,701. PATENTED AUG. 7, 1906. A. W. BERNDT.

MACHINE FOR RIVETING'HORSE GOLLARS.

APPLICATION FILED MALZO. 1905.

2 SHEETS-SHEET 2 WITNESSES: INVENTOR r? m. WMM

-.Q BY

ATTORNEY ms NORRIS Pzrsks co., wAsilmaroNfn. c.

ALBERT W. BERNDT, OF SAGlNAVV, MICHIGAN.

MACHINE FOR RIVETING HORSE-COLLAFIS.

Specification of Letters Patent.

Patented Aug. '7, 1906.

li'iplication filed March 20, 1905. Serial No. 251,167.

To all 1011,0712, it Duty concern:

Be it known that I, ALBERT W. BERNDT, a citizen of the United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Machines for Riveting Horse-Collars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for making horse-collars and pertains to devices for attaching to the sheet-metal back of a metallic collar the leather facing that incloses the collar-pad.

The invention relates more particularly to means for punching holes and driving rivets, by which the edge of the leather is secured to the edge of the steel shell or backing of the horse-collar.

The object of the invention is to provide means whereby the edges of the sheet-metal backing and the leather pad-covering are held together while rivet-holes are being punched in them and also while the rivets are eing driven.

A further object of the device is to provide means whereby the edge of the 'collar, with its leather attached, may be fed by a uniform step-by-step movement to a punch, which produces a series of evenly-spaced holes near the edge of the collar and at a uniform. distance from it.

To attain these objects, I provide the devices illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a collar, showing the rivets around its edge. Fig. 2 is a perspective view of half a collar, showing the guiding-rack clamped thereto and also showing the pinion along which the guidingrack moves while being fed to the punch. Fig. 3 is a perspective of the pinion, showing part of the rack engaged therewith and showing the guide or stop by which the distance of the rivet-holes from the edge of the collar is gaged. Fig. i is a vertical sectional view taken parallel with the pinion-shaft through the rack and collar. Fig. 5 is a perspective of the stop. Fig. 6 is a detail view of a riveting-die and its cooperating parts.

The outer edge of the metal shell 1 is of course warped to conform to the usual shape of a horse-collar, and to produce along this edge a uniformly-spaced series of holes 1 and likewise to clamp the metal shell and strip of leather 2, to which the leather padcovering is fastened, I provide a clamping device in the form of a curved bar 3, made to conform to the shape of the collar 1 and to fit on the under side thereof, so as to clamp the leather 2 firmly against the under side of the collar edge l I secure the bar 3 to the collar edge by any suitable means, such as the screw-clamps 4. (Shown in Fig. 2'.) On the under side of the bar 3 is a toothed rack 3, the teeth of which, if desired, may be formed integral with the bar 3. This toothed rack engages the pinion 5, mounted on the shaft 5 so that by revolving the pinion the warped edge of the collar may be caused to travel back and forth. The pinion-shaft is provided, as heretofore indicated, with suitable means for imparting to it intermittent or step-by-step movement, so that the rack and collar will be carried forward a distance equal to the pitch of the rivet-holes at each movement of the pinion.

A guide 6, secured to the frame 7 of the machine, engages the outer edge of the bar 3, as shown in Fig. 3, to gage the distance of the rivet-holes from the edge of the shell 1.

The leather 2 being in place against the edge of the shell 1 and being clamped to the bar 3, as above described, the toothed rack 3 is engaged with the pinion 5 and is fed forward step by step to the punch 8, by which the holes 1 are formed.

A socket 10 is carried by the frame 7 preferably directly in front of the shaft 5 on which the pinion 5 is mounted, the socket having a recess 11 therein to receive the punch when rivet-holes are being formed. The recess 11 is adapted to receive a .plug 12 when the rivets are to be set, as shown in Fig. 6, the plug serving as an anvil.

The bar 3 is adjustable laterally on the pinion upon which it is removably supported, the stop 6 limiting the lateral movement of the rack-bar in one direction.

It is only essential for the satisfactory operation of the feeding and punching device that the pinion 5 shall be adapted to feed the rack forward one rivet-space and remain stationary until the punch 8 descends and rises, after which movement of the pinion 5 again takes place. Any desired means for producing this intermittent movement of the pinion and punch may be adopted without departing from the spirit of my invention.

It is evident that the series of holes 1 (shown in Figs. 1 and 2) having been punched through the shell and leather the operation could be repeated again so long as the rack 3 remain clamped to the collar, the punch entering successively the holes made by it. Now if instead of the punching-die 8 being used a riveting-die 9 is substituted and a rivet is inserted in each of the holes 1 the operation may be repeated the same as in punching but with each descent of the punch a rivet will be driven. When all the rivets are in place, the clamping-bar 3 is removed and is then ready to receive another collar.

By the means above described I have produced a simple and efficient device whereby the holes may be rapidly and accurately punched along the edge of the collar-shell and through the leather to be attached and rivets may be rapidly driven without the aid of hand-labor in driving.

WVhat I claim as my invention, and desire to secure by Letters Patent, is as follows:

1. A horse-collar machine comprising a reciprocating punch, a suitably-driven pinion, a toothed bar removably engaging the pinion, the bar being laterally adjustable on the pinion relative to the punch, and a stop for limiting the movement of the bar in one direction.

2. In a horse-collar machine adapted to secure a flexible material to a metallic collar,

the combination of a toothed work-holder curved to conform to the shape of the collar, means for releasably clamping the collar and flexible mateiral to one face of the holder, a suitably-operated gear engaging the teeth on the opposite face of the holder, means for riveting the flexible material and metallic collar together as the work is carried along by the rack, and an arched guide located ad jacent the gear, against which guide a portion of the work is adapted to bear to gage the position of the rivets relative thereto.

3. A horse-collar machine comprising a suitably-operated die, a suitably-driven pinion, a toothed bar removably engaging the pinion, and means for removably securing the Work, face upward, directly upon the bar, the work extending past one edge of the bar and lying directly beneath the punch.

In testimony whereof I a'l'lix my signature in presence of two witnesses.

' ALBERT W. BERNDT.

Witnesses:

A. A. EASTERLY, ROY WALLIS. 

